Job 40:3-5

3 Then Job answered Yahweh,

4 "Behold, I am of small account. What shall I answer you?  I lay my hand on my mouth.

5 I have spoken once, and I will not answer;  Yes, twice, but I will proceed no further." 

Job 42:1-6

1 Then Job answered Yahweh,

2 "I know that you can do all things,  And that no purpose of yours can be restrained.

3 You asked, 'Who is this who hides counsel without knowledge?'  Therefore I have uttered that which I did not understand,  Things too wonderful for me, which I didn't know.

4 You said, 'Listen, now, and I will speak;  I will question you, and you will answer me.'

5 I had heard of you by the hearing of the ear,  But now my eye sees you.

6 Therefore I abhor myself,  And repent in dust and ashes."